Vaccination As Biology OCR Unit 2

  • Created by: Alex
  • Created on: 23-05-11 13:15

Vaccination: A deliberate exposure to antigenic material, which activates the immune system to make an immune response and provide immunity

Antigenic Material used in vaccines  can take a variety of forms

  • whole, live microorganisms - usually ones not as harmful as teh real disease but they have similar antigens so antibodies produced will by effective against the real pathogen
  • Harmless of attenuated version of the pathogenic organism
  • A dead pathogen
  • Preparation of the antigons from a pathogen
  • Some harmless toxin(toxid)

Herd vaccination:
Provide vaccination to almost all the population
Once enough…


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